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c/electricians•wren652wren652•2d ago

I finally got around to testing a batch of old breakers from a 1980s panel swap

Used my new Greenlee tester on a Square D QO that looked fine, and it failed to trip within the proper time. It was just sitting in my garage for a backup. Learned that visual inspection isn't enough, even on stored parts. Anyone have a good method for checking old stock before you trust it?
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mark731
mark7312d agoMost Upvoted
That "visual inspection isn't enough" is a great reminder for how many things (not just tools) can degrade just sitting around.
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charlesowens
Right, @mark731? Seen it with old gear. Looks fine until you put weight on it.
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